<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Re: Circle of Sound</TITLE> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2523" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV> </DIV> <DIV style="FONT: 10pt arial">----- Original Message ----- <DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A title=michael@gambles.fsnet.co.uk href="mailto:michael@gambles.fsnet.co.uk">Michael Gamble</A> </DIV> <DIV><B>To:</B> <A title=bigda@gte.net = href="mailto:bigda@gte.net">David Andersen</A> </DIV> <DIV><B>Sent:</B> Monday, January 24, 2005 3:38 PM</DIV> <DIV><B>Subject:</B> Re: Circle of Sound</DIV></DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>Hello all</FONT></DIV> <DIV><FONT face=Arial size=2>I had this problem of a "ringing plate" = about thirty years or so ago and fixed it by cutting a piece of 1 x 3, cutting = out two notches deep enough to clamp over the offending strut and attach it to = the next strut, (the struts are diverging, so a decent stiff attachment was = possible) lining those two slots with thick bearing cloth and.... Hey Presto! = ...gone...! The result may not look brilliant - but it worked and my client was = delighted. I actually got <EM>him</EM> to make it!</FONT></DIV> <DIV><FONT face=Arial size=2>Regards from a variable snow - to = brilliant sunny day in my Sussex village...</FONT></DIV> <DIV><FONT face=Arial size=2>Michael G (UK)</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=bigda@gte.net href="mailto:bigda@gte.net">David = Andersen</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, January 24, 2005 = 8:16 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Circle of = Sound</DIV> <DIV><BR></DIV> <BLOCKQUOTE><FONT size=4><FONT face=Arial><SPAN = style="FONT-SIZE: 14px">I've heard some struts from vacuum processed plate that ring for 2 or = more second & in sympathy with certain frequencies.<BR></SPAN></FONT></FONT></BLOCKQUOTE><FONT = face=Verdana><SPAN style="FONT-SIZE: 12px"><BR><BR>Absolutely, brother:  the = “dirty little secret of the light-plate Yamaha C series grand pianos; some of those = suckers have some incredibly strong plate resonance, especially in octaves 4.5 = to 6.  And I have a confession to make:  if the customer doesn’t = complain, I don’t say s**t---because what can I do?<BR><BR>What can I do? Ron = N.? Special mass loaders for the plate? A big fat dead guy draped behind = the hitch and hanging off the back of the piano?<BR>What?  Please help me.  Please.<BR><BR>David “what noise? I don’t hear anything” Andersen</SPAN></FONT> </BLOCKQUOTE></BODY></HTML>